Werner is dead. A witness statement confirms that it was not an accident, but murder. Sophie and Margot were both on the roof at the time of his death. While they claim to have heard Werner's scream in the hallway on the stairs, Alexander's testimony, who heard both women talking on the roof right after the murder, seems to prove the opposite. Since both would have had a motive for murder due to their hatred of Werner, they are arrested by the police ... The tree house is ready. Jens tries once again to drive the friends out of the forest by threatening them with a complaint. However, Till, Ute, Antonia and Marc don't give up. Rather, they want to ask Dr. Weißenburg to prepare the counter-report as quickly as possible. Jens and Laura make a diabolical plan: they want to set fire to the tree house and blame the fire on the environmentalists without endangering their lives. But when Jens puts the plan into action, Till and Ute are still in the tree house ... Raphael and Gesine put Armin under massive pressure to get the money back from him. Melanie races with Chris towards the wall of a warehouse in Rheinauhafen to carry out her murder mission.